北方农业学报 ›› 2022, Vol. 50 ›› Issue (3): 60-66.doi: 10.12190/j.issn.2096-1197.2022.03.08

• 植物保护·园艺 • 上一篇    下一篇

灯笼红香瓜枯萎病病原菌分离鉴定及药剂防治研究

白锦江1, 赵健1, 刘颖2, 郑红丽1, 赵明敏1   

  1. 1.内蒙古农业大学 园艺与植物保护学院,内蒙古 呼和浩特 010011;
    2.鄂尔多斯生态环境职业学院,内蒙古 东胜 012000
  • 收稿日期:2022-04-02 修回日期:2022-05-10 出版日期:2022-06-20 发布日期:2022-08-09
  • 通讯作者: 赵明敏(1975—),女,教授,博士,主要从事植物病毒学的研究工作。
  • 作者简介:白锦江(1994—),男,硕士研究生,研究方向为植物病害综合防治。
  • 基金资助:
    内蒙古农业大学高层次人才引进科研启动项目(NDGCC2016-23)

Isolation and identification of pathogen causing Fusarium wilt in Denglonghong muskmelon and study on plant derived fungicide control

BAI Jinjiang1, ZHAO Jian1, LIU Ying2, ZHENG Hongli1, ZHAO Mingmin1   

  1. 1. College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot 010011,China;
    2. Ordos Vocational College of Eco-environment,Dongsheng 012000,China
  • Received:2022-04-02 Revised:2022-05-10 Online:2022-06-20 Published:2022-08-09

摘要: 【目的】明确引起内蒙古巴彦淖尔市五原县灯笼红香瓜枯萎病的病原菌,探究植物免疫诱抗剂和植物源药剂对该病害的防治作用。【方法】利用组织分离法对灯笼红香瓜枯萎病病原菌进行分离,采用柯赫氏法则对其致病性进行分析,并利用盆栽法进行4种药剂(植物免疫诱抗剂JM1、JM2、JM3,植物源药剂蛇床子素)的室内药效测定。【结果】从表现枯萎症状的香瓜上分离的真菌,可以回接到香瓜幼苗并引起典型的香瓜枯萎病症状,将该菌株命名为TG2菌株。根据菌落、孢子特征、孢子形态及ITS序列检测,将其确定为尖孢镰刀菌(Fusarium oxysporum)。JM1、JM2、JM3及蛇床子素对灯笼红香瓜枯萎病均有一定的防治效果,分别为45.99%、61.43%、15.13%、65.28%。【结论】尖孢镰刀菌(Fusarium oxysporum)是引起五原县灯笼红香瓜枯萎病的病原菌;植物免疫诱抗剂JM2与植物源药剂蛇床子素的防治效果较佳。

关键词: 灯笼红香瓜, 枯萎病, 尖孢镰刀菌, 植物免疫诱抗剂, 植物源药剂

Abstract: 【Objective】To identify the pathogen causing Denglonghong muskmelon Fusarium wilt in Wuyuan County,Bayannur City,Inner Mongolia,and investigate the disease response to plant immune inducers and plant-derived fungicide.【Methods】Tissue isolation method was used to isolate the Fusarium wilt pathogen from Denglonghong muskmelon,and Koch′s rule was used to assess its pathogenicity. The in door efficacy of four drugs(plant immune inducers JM1,JM2,JM3,and plant-derived fungicide Osthol)was evaluated using potted plants.【Results】The fungi isolated from muskmelon with wilting symptoms could inoculate muskmelon seedlings and cause typical muskmelon wilt symptoms. The strain was named TG2. According to the colony,spore characteristics,spore morphology and ITS sequence,it was identified as Fusarium oxysporum. JM1,JM2,JM3,and Osthol each demonstrated a control effect on the Fusarium wilt of 45.99%,61.43%,15.13%,and 65.28%,respectively. 【Conclusion】The pathogen that Causes Denglonghong muskmelon Fusarium wilt in Wuyuan County was Fusarium oxysporum. Plant immune inducer JM2,and plant-derived fungicide Osthol had better control effect.

Key words: Denglonghong muskmelon, Fusarium wilt, Fusarium oxysporum, Plant immune inducer, Plant-derived fungicide

中图分类号: 

  • S436.5